diff --git a/.github/workflows/purge-readme-image-cache.yml b/.github/workflows/purge-readme-image-cache.yml
index c696b8d..c9e2358 100644
--- a/.github/workflows/purge-readme-image-cache.yml
+++ b/.github/workflows/purge-readme-image-cache.yml
@@ -1,7 +1,6 @@
 name: Purge image cache
 
 on:
-  push:
   schedule:
     - cron: '4 18 * * *'